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Tuesday, December 19, 2017
Gut bacteria in bees spread antibiotic-resistant genes to each other.
Gut bacteria in bees spread antibiotic-resistant genes to each other.Researchers have discovered that antibiotic-resistant genes are spread in honey bee gut bacteria so that all strains of bacteria survive, rather than just one gut bacterium acquiring resistance and outcompeting others.
Antibiotic use in farming and human health leads to bacteria acquiring resistance (indicated by a + sign in the illustration). Antibiotic-resistant bacteria in the environment are picked up by honey bees during pollination. In the bee's gut, genetic material for resistance "jumps" to natural gut bacteria, which can spread resistance further. Overuse of antibiotics (USA) leads to more widespread and elaborate patterns or resistance (indicated by multiple colors of + signs). Restricted antibiotic use (Norway) leads to limited and less complex patterns of resistance.
How will humans survive serious infections in the future if we're running out of tools today to fight them? Antibiotic resistance among disease-causing bacteria is of global concern, as some last-resort drugs can no longer cure common illnesses such as urinary tract infections.
To make matters worse, researchers from Arizona State University and Norwegian University of Life Sciences have discovered that our very own gut bacteria may be perpetuating the resistance. Scientists uncovered this startling finding while investigating the microbial life in honey bee guts.
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